Holiday is 35 as of June 12, and Porzingis is coming off a postseason where he was limited by a respiratory ailment. “I don’t know what they’re going to be able to do with the luxury tax and the new ownership, but from a purely basketball standpoint, Boston is still in really good shape,” the source told Heavy Sports. “Hell, there are a lot of teams that hope they break up part of that team, because that will give others a better chance.